Patents by Inventor Jae-Gul Lee

Jae-Gul Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190335182
    Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.
    Type: Application
    Filed: July 9, 2019
    Publication date: October 31, 2019
    Inventors: Jeong-yeon LIM, Jae-seob SHIN, Sung-gul RYOO, Se-hoon SON, Hyeong-duck KIM, Sun-young LEE
  • Publication number: 20190238860
    Abstract: A method and apparatus are disclosed for generating a video bitstream for high-resolution video streaming. The present disclosure in some embodiments provides a method and apparatus for generating a video bitstream by encoding a video at a different bit rate for each of video areas, in order to efficiently transmit a large amount of high-resolution video contents.
    Type: Application
    Filed: July 3, 2017
    Publication date: August 1, 2019
    Applicants: SK Telecom Co., Ltd., Pixtree, Inc.
    Inventors: Jeong-yeon LIM, Jae-seob SHIN, Sung-gul RYOO, Se-hoon SON, Hyeong-duck KIM, Sun-young LEE
  • Publication number: 20190222862
    Abstract: An encoding apparatus comprises: a network interface for receiving an image; a memory for storing a command for encoding the image; and a processor for encoding the image according to the command, wherein the processor performs padding to set pixel values of a padding area corresponding to one edge area of the image by referring to the other edge area of the image adjacent to the one edge area on a sphere on which the image is projected, seeks a motion vector by referring to the pixel values of the padding area and encodes the image by referring to the motion vector, wherein the image is a 360-degree image.
    Type: Application
    Filed: June 21, 2017
    Publication date: July 18, 2019
    Applicant: PIXTREE TECHNOLOGIES, INC.
    Inventors: Jae Seob SHIN, Sung Gul RYOO, Se Hoon SON, Sun Young LEE
  • Patent number: 9871377
    Abstract: The device for cooperation control of the EMS and the DMS comprises: a calculation unit for calculating an AQI index on the basis of target system information and power flow calculation data; a determination unit which determines whether or not to perform reactive power cooperation control switching of the DMS on the basis of the calculated AQI index and the amount of needed local reserve reactive power (Qreq), and which determines a suppliable reactive power capacity on the basis of the amount of needed local reserve reactive power (Qreq) and a suppliable reactive power range; and a control unit which transmits a cooperation control mode switching control signal so as to switch the DMS to a reactive power cooperation control mode if it is determined that reactive power cooperation control switching of the DMS is to be performed, and which controls the DMS to supply reactive power.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: January 16, 2018
    Assignee: KOREA ELECTRIC POWER CORPORATION
    Inventors: Jeong-Hoon Shin, Jae-Gul Lee, Seung-Mook Baek, Sang-Wook Han, Ji-Young Song, Tae-Kyun Kim
  • Publication number: 20150214739
    Abstract: The device for cooperation control of the EMS and the DMS comprises: a calculation unit for calculating an AQI index on the basis of target system information and power flow calculation data; a determination unit which determines whether or not to perform reactive power cooperation control switching of the DMS on the basis of the calculated AQI index and the amount of needed local reserve reactive power (Qreq), and which determines a suppliable reactive power capacity on the basis of the amount of needed local reserve reactive power (Qreq) and a suppliable reactive power range; and a control unit which transmits a cooperation control mode switching control signal so as to switch the DMS to a reactive power cooperation control mode if it is determined that reactive power cooperation control switching of the DMS is to be performed, and which controls the DMS to supply reactive power.
    Type: Application
    Filed: September 17, 2013
    Publication date: July 30, 2015
    Inventors: Jeong-Hoon Shin, Jae-Gul Lee, Seung-Mook Baek, Sang-Wook Han, Ji-Young Song, Tae-Kyun Kim
  • Patent number: 9065258
    Abstract: A switch according to the invention comprises a enclosure that is solid insulated and includes an electric power source side bushing portion, an electric load side bushing portion, and an accommodation body portion having air filled therein; a main circuit switch installed, for each pole, and having a vacuum interrupter that switches an electric power circuit by receiving a switching driving force from a common actuator; and an earth switch installed including a first fixed contactor to be earthed; a second fixed contactor electrically connected to the electric power source side connection conductor; and a movable blade connected to the common actuator, and movable to a first position for contacting the first fixed contactor and to a second position for contacting the second fixed contactor, by the switching driving force from the common actuator.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: June 23, 2015
    Assignee: LSIS Co., Ltd.
    Inventors: Jae Gul Lee, Sang Hyub Yoon, Dong Hwan Jung, Young Kim
  • Patent number: 8848344
    Abstract: A solid insulated switchgear having at least one circuit switches for switching a three-pole AC circuit includes a plurality of bus-bars for pole. Each of the bus-bars for pole being providing correspondingly for each pole comprises a ring-shaped bus-bar portion electrically connecting the arc extinguishing mechanisms for the same pole, and each having an internal electrical conductor portion and an external solid insulated mold portion in which the conductor portion is built; and a plurality of extended connecting portions respectively extended from the ring-shaped bus-bar portion while being space apart from one another in a circumferential direction so that the plurality of circuit switches are connected in the state in which the plurality of circuit switches are separated from one another.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: September 30, 2014
    Assignee: LSIS Co., Ltd.
    Inventors: Jeong Mu Byeon, Jae Gul Lee
  • Patent number: 8764467
    Abstract: Disclosed is an external connector for a solid insulated load break switchgear. A semi-conductive layer for uniformly distributing an inner field is formed in a body part of a connector to uniformly distribute an inner field. This may prevent partial lowering of an insulating performance of the connector to enhance the insulating performance of the connector. Furthermore, a semi-conductive layer for uniformly distributing an outer field is formed between the connector and a bushing coupled to an upper end of the connector, and between the connector and a plug coupled to a lower end of the connector. This may allow an electric field to be uniformly distributed to a part connected to a ground surface of an arc extinguishing part.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: July 1, 2014
    Assignee: LSIS Co., Ltd.
    Inventor: Jae Gul Lee
  • Publication number: 20130258556
    Abstract: A switch according to the invention comprises a enclosure that is solid insulated and includes an electric power source side bushing portion, an electric load side bushing portion, and an accommodation body portion having air filled therein; a main circuit switch installed, for each pole, and having a vacuum interrupter that switches an electric power circuit by receiving a switching driving force from a common actuator; and an earth switch installed including a first fixed contactor to be earthed; a second fixed contactor electrically connected to the electric power source side connection conductor; and a movable blade connected to the common actuator, and movable to a first position for contacting the first fixed contactor and to a second position for contacting the second fixed contactor, by the switching driving force from the common actuator.
    Type: Application
    Filed: March 26, 2013
    Publication date: October 3, 2013
    Applicant: LSIS CO., LTD.
    Inventors: Jae Gul LEE, Sang Hyub YOON, Dong Hwan JUNG, Young KIM
  • Patent number: 8462485
    Abstract: A switchgear for a ground distribution line includes a base frame, vacuum switch units each installed on the base frame and configured by laying a first vacuum interrupter and a second vacuum interrupter within an epoxy resin mold, the first vacuum interrupter opening or closing a main circuit between a power source side and a load side and the second vacuum interrupter opening or closing a ground circuit, a main circuit interface protruding from one side of each vacuum switch unit, and a phase connector interface protruding from the other side of each vacuum switch unit in the same direction as the main circuit interface.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: June 11, 2013
    Assignee: LSIS Co., Ltd.
    Inventor: Jae Gul Lee
  • Publication number: 20130044407
    Abstract: A solid insulated switchgear having at least one circuit switches for switching a three-pole AC circuit includes a plurality of bus-bars for pole. Each of the bus-bars for pole being providing correspondingly for each pole comprises a ring-shaped bus-bar portion electrically connecting the arc extinguishing mechanisms for the same pole, and each having an internal electrical conductor portion and an external solid insulated mold portion in which the conductor portion is built; and a plurality of extended connecting portions respectively extended from the ring-shaped bus-bar portion while being space apart from one another in a circumferential direction so that the plurality of circuit switches are connected in the state in which the plurality of circuit switches are separated from one another.
    Type: Application
    Filed: August 6, 2012
    Publication date: February 21, 2013
    Applicant: LSIS CO., LTD.
    Inventors: Jeong Mu BYEON, Jae Gul LEE
  • Patent number: 8289006
    Abstract: Provided is an optimized system voltage control method through coordinated control of reactive power source, which analyzes the location for reactive power compensation and the effect of applying compensation equipment by calculating the reactive power and voltage sensitivity of a power system, thus improving the voltage quality of the power system.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: October 16, 2012
    Assignee: Korea Electric Power Corporation
    Inventors: Su-Chul Nam, Jeong-Hoon Shin, Seung-Tae Cha, Jae-Gul Lee, Tae-Kyun Kim
  • Patent number: 8249851
    Abstract: A monitoring system using a real-time simulator, providing a simulation environment of a real electric power system that enables testing of a new electric power system control facility. The operation of the new electric power system control facility and effects thereof on a real electric power system can be evaluated before actual installation. The monitoring system includes a test piece installed in an electric power system; a simulator connected to the test piece, and deriving electric power system simulation data by simulating the electric power system with respect to the test piece; a multimedia interface (MMI) platform interworking with the simulator, providing the simulator with electric power system status data for simulating the electric power system, and receiving the electric power system simulation data from the simulator; and an MMI client interworking with the MMI platform to display the electric power system simulation data from the MMI platform.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: August 21, 2012
    Assignee: Korea Electric Power Corporation
    Inventors: Su Chul Nam, Jae Gul Lee, Seung Tae Cha, Jeong Hoon Shin, Tae Kyun Kim
  • Publication number: 20120156934
    Abstract: Disclosed is an external connector for a solid insulated load break switchgear. A semi-conductive layer for uniformly distributing an inner field is formed in a body part of a connector to uniformly distribute an inner field. This may prevent partial lowering of an insulating performance of the connector to enhance the insulating performance of the connector. Furthermore, a semi-conductive layer for uniformly distributing an outer field is formed between the connector and a bushing coupled to an upper end of the connector, and between the connector and a plug coupled to a lower end of the connector. This may allow an electric field to be uniformly distributed to a part connected to a ground surface of an arc extinguishing part.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 21, 2012
    Applicant: LSIS CO., LTD.
    Inventor: Jae Gul LEE
  • Publication number: 20110304956
    Abstract: A switchgear for a ground distribution line includes a base frame, vacuum switch units each installed on the base frame and configured by laying a first vacuum interrupter and a second vacuum interrupter within an epoxy resin mold, the first vacuum interrupter opening or closing a main circuit between a power source side and a load side and the second vacuum interrupter opening or closing a ground circuit, a main circuit interface protruding from one side of each vacuum switch unit, and a phase connector interface protruding from the other side of each vacuum switch unit in the same direction as the main circuit interface.
    Type: Application
    Filed: May 27, 2011
    Publication date: December 15, 2011
    Inventor: Jae Gul LEE
  • Publication number: 20100179800
    Abstract: A monitoring system using a real-time simulator, providing a simulation environment of a real electric power system that enables testing of a new electric power system control facility. The operation of the new electric power system control facility and effects thereof on a real electric power system can be evaluated before actual installation. The monitoring system includes a test piece installed in an electric power system; a simulator connected to the test piece, and deriving electric power system simulation data by simulating the electric power system with respect to the test piece; a multimedia interface (MMI) platform interworking with the simulator, providing the simulator with electric power system status data for simulating the electric power system, and receiving the electric power system simulation data from the simulator; and an MMI client interworking with the MMI platform to display the electric power system simulation data from the MMI platform.
    Type: Application
    Filed: January 9, 2009
    Publication date: July 15, 2010
    Applicant: KOREA ELECTRIC POWER CORPORATION
    Inventors: Su Chul NAM, Jae Gul LEE, Seung Tae CHA, Jeong Hoon SHIN, Tae Kyun KIM
  • Publication number: 20100106338
    Abstract: Provided is an optimized system voltage control method through coordinated control of reactive power source, which analyzes the location for reactive power compensation and the effect of applying compensation equipment by calculating the reactive power and voltage sensitivity of a power system, thus improving the voltage quality of the power system.
    Type: Application
    Filed: September 29, 2009
    Publication date: April 29, 2010
    Applicant: KOREA ELECTRIC POWER CORPORATION
    Inventors: Su-Chul NAM, Jeong-Hoon SHIN, Seung-Tae CHA, Jae-Gul LEE, Tae-Kyun KIM
  • Patent number: 6689779
    Abstract: The present invention relates to novel oxazolidinone derivatives, their pharmaceutically acceptable salts and a process for the preparation thereof. More particularly, the present invention relates to oxazolidinone derivatives having pyridine or pyrimidine moeity substituted by heterocycle and heteroaromaticcycle at 4-position of phenyl ring. The compounds of the present invention have wide antibacterial spectrum, superior antibacterial activity and low toxicity, such that the compound of this invention can be used as an antibacterial agent.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: February 10, 2004
    Assignee: Dong A Pharm. Co., Ltd.
    Inventors: Jae-Gul Lee, Won-Bin Leem, Jong-Hwan Cho, Sung-Hak Choi, Jong-Jin Lee, Sang-Kuk Park, Tae-Hoo Lee, Dong-Goo Kim, Hyun-Jung Sung
  • Publication number: 20030166620
    Abstract: The present invention relates to novel oxazolidinone derivatives, their pharmaceutically acceptable salts and a process for the preparation thereof. More particularly, the present invention relates to oxazolidinone derivatives having pyridine or pyrimidine moeity substituted by heterocycle and heteroaromaticcycle at 4-position of phenyl ring. The compounds of the present invention have wide antibacterial spectrum, superior antibacterial activity and low toxicity, such that the compound of this invention can be used as an antibacterial agent.
    Type: Application
    Filed: November 27, 2002
    Publication date: September 4, 2003
    Inventors: Jae-Gul Lee, Won-Bin Leem, Jong-Hwan Cho, Sung-Hak Choi, Jong-Jin Lee, Sang-Kuk Park, Tae-Hoo Lee, Dong-Goo Kim, Hyun-Jung Sung